MOUTHSTICKS OR ORTHODONTIC ORTHOSES ARE WIDELY USED BY PEOPLE WITH SPINAL CHORD INJURIES OR SIMILAR DISABILITIES TO INCREASE CONTROL OVER THEIR ENVIRONMENT. PEOPLE WITH THE ADDITIONAL LIMITATION OF LITTLE OR NO ANTERIOR/POSTERIOR HEAD MOTION MAY BENEFIT FROM AN EXTENDIBLE MOUTHSTICK. HOWEVER, COMMERCIAL EXTENDIBLE MOUTHSTICKS SUFFER IN THAT THEIR ACTION IS OFTEN SLOW, EXTENDIBILITY IS LIMITED, OR ...

REMOVAL OF TOXIC METALS FROM WASTEWATER STREAMS HAS BECOME A PROBLEM OF INCREASING NATIONAL IMPORTANCE, AS A RESULT OF INCREASING CONCERN FOR OUR ENVIRONMENT, AND INCREASINGLY STRINGENT WASTE DISPOSAL REGULATIONS. CHROMATOCHEM, INC., HAS DEVELOPED AN ECONOMICAL AND EFFECTIVE NEW TECHNOLOGY FOR THE REMOVAL OF LOW LEVELS OF TOXIC METAL IONS FROM WASTEWATER STREAMS, USING SOLID PHASE EXTRACTION (SPE) ...

Lean burn spark engines are a promising technique to further reduce both NOx and hydrocarbon/carbon monoxide (HC/CO) engine emissions. Higher lean burn levels improve HC/CO oxidation while simultaneously reducing NOx formation. The NOx reduction is due to cooler flame temperatures. While the lean burn limit (beyond which combustion is poor) restricts further emission reductions, the use of oxyg ...

THE U.S. POSSESSES HUGE COAL RESERVES, BUT SULFUR DIOXIDE (SO2) RELEASED UPON COMBUSTION IS A MAJOR CONTRIBUTOR TO ACID RAIN. SIGNIFICANT ADVANCES HAVE BEEN MADE IN THE DEVELOPMENT OF MICROBIAL PROCESSES FOR PRECOMBUSTION REMOVALOF INORGANIC SULFUR FROM COAL. THIOBACILLUS AND SULFOLOBUS SP. HAVE BEEN MOST FREQUENTLY EMPLOYED. THEY ARE OPTIMALLY ADAPTED TO FUNCTION AT A PH BELOW 3 AND OFTEN AT ELEV ...